I found some cool diamond patterns, but nothing quite like the black and white example you provided: Also, while searching I found this totally awesome concept: Were you able to find a wallpaper like the one you provided?

No suggestions here apart from getting the wallpaper you want either shipped to you or searching around for it!

I love that colorful floral!! it almost has a 40 vibe, and glamorous - I think it would look great in small toilet, maybe matte gold color mirror frame (and everything else white). The other floral is more retro - I prefer the glamorous florar. For the bathroom, if its a paper wallpaper I wouldn't use it beause of the moisture from showers might have the paper corners come off, and you can't really clean it - so I would skip wallpaper there. I love wallpaper and the drama it gives, but it has it challenges. But I like your choises so far, so you are on the right track. If you do something for the lounge I would do something geometric, and monogromatic more subtle.

I'm sure there's a lot of information out there thanks to a quick Google.